Battery-clamp-removing tool



L. RENARI' BATTERY CLAMP REMOVING TooL Filed May 6, 1924 Oct. l2 1926.'.

INVENTOR L oLLILS `I? en BY A'TORNEY lIZ . the battery from thecar orotherlocatiom Patented Oct. 12, y1926.

'PAT-EuroF-,Flcn "a LOUIS RENARI, or sAN'rAfRosA CALIFORNIA.

f BATTERY-cLAMr-REMWNGmoet.

This invention relates to a tool forremoving the ordinarysplit cableterminal clamps used in connecting the current cables to the posts ofstorage batteries of theusual wet-. cell typewidely used inv automobilesandthe like, f

At present, when it isdesired to remove the clamps, whichh'ave a wedgefit on ,the posts, are loosened and pried up pliers andthelike. 4Theposts being, of lead, are very easily damaged and the clamps beingnonresilient, tend to grip the same very firmly even when the clampingscrews are loosened. This is especially true if the clamp is corroded,as is frequently the case with the crude methods of removing the clampsnow employed, the post or clamps are apt to be ruined, and internal andunseen injury is sometimes done to the parts of the battery to which theposts are connected.

The principal object of my invention therefore is to provide a tool bymeans of which a clamp, no mattei' how tightly fastened it may be to thepost, may be easily and quickly removed from 'the latter, withoutpossibility of damage to the post, clamp or battery.

A further object of the invention is to produce a simple and inexpensivedevice and yet one which will be exceedingly effective for the purposefor which it is designed.

These objects I accomplish by means of such structure and relativearrangementof parts as will fully appear by a perusal of the followingspecification and claims.

ln-the drawings' similar characters of reference indicate correspondingparts in the several views:

Fig. 1 is a sectional elevation of my improved tool.

Fig. 2 is a bottom plan view of the same.

Referring now more particularly to the characters of reference on thedrawings, the numeral 1 denotes a hollow shell or barrel of a size suchas enables it to serve as a hand-grip member. The opposite ends of thebarrel are provided with upper and lower transverse members 2 and 3respectively, threaded in longitudinally alined relation and centrallyof the cross sectional area of the barrel to receive a screw stem 4, onthe lower end of which, beyond the member 3, is turnably mounted a head5.

Pins 6 are journaled in the barrel transwith anyv implementhandy, suchVas a screw-driver,`

'members 11 adjacent each other.

c Application med May s, 1924.v ,seria-1. No; ivi-1,403.1n

versely thereof on opposite, sides of 'and adjacent the ymember 3.Opposed arms7 are pivoted on thesegpins` and t project upwardlyAtherefrom and inside the barrel for a cer` tain distance. The upper endsof these arms are formed withA outwardly Vextending ,por-v tions 8`whichfp'roject throughslots 9 cut in the barre'hpthe said portionsShaving linger buttons or padsr 10 on their outer ends. Below. ,the pinsand v barrel-,theV ,arms 7 are formedywit-h hook-like aw members `11,whose lower ends fare 'substantiallyl horizontally ,disposedA and lielinopposed alinement withcach other'. Said lower endsk are w'idf ened as at12 so as to provide ample surface for engagement with the under face ofaf common battery clamp 13 on opposite sides thereof, the adjacent edgesof said widened portions being concaved so as to partially surround thepost 1'4 on which the clamp is fixed.

' Springs 15 are .fixed at one end in the barrel 1 above the arms 7 andbear at their lower ends against the said arms. These springs act toforce the arms against the barrel 1, and consequently normallyv holdthelower ends of jaw or clamp engaging The contact of the arms with thebarrel prevents the springs from forcing said jaws towards each othercloser than a definite distance, so that said jaws will. not grip thepost 14 when applied thereto.

A handle 16 is fixed on the upper end of the stemV 4 so that the lattermay be readily turned and hence advanced or retracted in the barrel.

To voperate the tool, the stem is first retracted, and the jaws 11 arespread, by pressing the pads 10 toward the barrel, sufficiently toenable the portions 12 to clear the opposite sides of the clamp 13.

The tool is then lowered so that the p0rtions 12 are below the clamp,and the pads are then released, permitting the parts 12 to close underthe clamp. The spread of the portions 11 is sufficient so that theynever come in contact with the sides of the clamp when the ends 12 areabout the post 14.

The stem is then advanced in the barrel, the head 5, which is of smallerdiameterv than Vthe post 14, being engaged with the top of the latter.It will then be Vevident that as the head 5 and ends 12 approach eachother with such stem-advancing movement, the clamp will be pulled from te post. At

the saine tiine no actual downward pressure is exerted on the post suchas would tend to depress it into the battery, since the tool is nowherein contact with the battery box itself.

From the foregoing description it will be readily seen that I haveproduced. such a device as substantially fulfills the objects of theinvention as set forth herein.

lihile this speeiiieaiion sets 'forth in detail the jnes'ent andpreferred construction of the device, still iii practice such deviationsiroin such detail mayv be resorted to Aas do notl forni a departureron'i the spirit of the invent-ion, as delined by the appended olaiin's.

lila'ving thus described in v invention what l claim as new and usefuland desire to secure by Letters Patent is :jv

l. A battery clanipI rerum/'ing tool coinprising a barrel' serving' as'a hand grip ineinber, a stein extending through the rbarrel lengthwisethereol'I and threaded therein, opposed arnis pivoted in the barreladjacent one end tliereolE and projectingthence into the barrel, angledextensions at the free ends of said arins projecting through slotsprovided in the barrel, spring means norinally holding` the arms againstthe barrel, and Cooperating` and opposed jaw means incorporated with thearms beyond their pivotal' connections and projecting beyond the barrel.l l j 2. il battery elainp pulley including a stein adapted at one endtor engagement with the top ot a battery-post, a support in which saidstein is threaded for longitudinal inovenient, opposed jaw nieniberspivoted on said support7 and adapted to pass under a clanip on the post,spring; means ioreing the jaws toward each other, ineans limiting theaction oif the spring whereby to prevent the jaws frictionally engagingthe post, and ineans for spreadingjthe jaws at will.

in testimony whereoli I aiiix my signature.

Loins Benini;

